Ultimately, federal authorities had to intervene to stop the violence.

The government needs to intervene quickly to stop this greed.

It would intervene to stop such a crime against history and humanity.

Riot policemen kept watch outside the church but did not intervene to stop the meeting.

The security forces have to intervene right away to stop an escalation of violence.

"I think, however, that if the market started pushing the dollar down, they probably would not intervene to stop it either."

And most important, we can intervene in time to stop him.

At high and local levels the government intervened to stop what active church help there was.

Again, the police did not intervene to stop the looting.

But it does not cover those who fail to report a crime or to intervene to stop one, the spokesman said.